Yes, I think it would be less common for people to be browsing the web on smaller sized phones since the iPhone 5C, 5S, and different brands of Android phones by HTC,LG and Samsung now sell phones with bigger screens, and they are pretty popular.
The Chinese like Lenovo, Hauwei, Xiaomi, and ZTE are also selling cheaper larger screen Android phones which cost less than Japanese, Korean, and American brands, so more people can afford larger screen phones made by the Chinese.
Tablets, eReaders, cheap Netbooks, and laptops are also more common these days for mobile web browsing, so people may just use their bigger screen devices to browse the web instead of using their phone.
The Chinese like Lenovo, Hauwei, Xiaomi, and ZTE are also selling cheaper larger screen Android phones which cost less than Japanese, Korean, and American brands, so more people can afford larger screen phones made by the Chinese.
Tablets, eReaders, cheap Netbooks, and laptops are also more common these days for mobile web browsing, so people may just use their bigger screen devices to browse the web instead of using their phone.